Some failure patterns are so persistent that the National Audit Office can predict them before a programme even reports its first delay. Its November 2025 examination of National Savings & Investments’ Business Transformation Programme is a case in point: a programme that has already cost £111 million without delivering a single modernised service, is now forecast to cost £3.0 billion against an original estimate of £1.7 billion, and will finish four years later than planned.[^1] What makes the report notable isn’t the scale of the overrun. It’s that the NAO could trace the overrun back to four causes that appear, in some combination, in almost every troubled transformation programme it has ever examined: underestimating complexity, failing to plan end-to-end, under-resourcing capability, and awarding contracts without understanding how they depend on each other.[^1] These are not unlucky one-off mistakes. They are anti-patterns, recurring, recognisable, and largely preventable if you know to look for them early.
For leaders sponsoring, delivering, or advising on transformation in government and regulated organisations, the value of naming these anti-patterns explicitly is that they can be checked for before a programme starts, not diagnosed after it has already spent hundreds of millions of pounds failing to notice them.
Anti-pattern one: committing to scope and timetable before the problem is understood
NS&I set out in 2020 to replace a 25-year single-supplier arrangement with five competitively procured contracts, targeting completion by March 2024. The NAO’s account is blunt: NS&I set an ambitious scope and timetable without factoring in contingency for delays, without allowing time to properly understand the technical infrastructure it was replacing, and without a plan for how it would resolve interdependencies between the new contracts.[^1] The same pattern shows up at a much larger scale in the NAO’s dedicated study of mega-project governance, which found that government’s records “contain many examples of mega-projects being announced, and their budgets and timetables made public, before adequate options appraisal and costing and feasibility analyses have been performed.”[^2] The pressure to announce progress, hit a spending review cycle, or fit an electoral timetable is real and understandable. But committing publicly to a number before you understand the problem well enough to generate a credible one doesn’t create discipline; it creates a number you will spend the rest of the programme quietly failing to hit.
Anti-pattern two: no end-to-end owner for a genuinely interdependent system
NS&I’s second root cause is one of the most common and least discussed failure modes in public sector technology change: attempting to decompose a highly integrated system into separate procurement packages without a function responsible for understanding how the pieces fit back together. The NAO found NS&I lacked a systems integrator function throughout much of the programme, which is precisely why a 2024 external review was able to identify 59 separate solution gaps in the target architecture, including the absence of an end-to-end design, at a point where hundreds of millions of pounds had already been committed.[^1] The mega-projects report finds an almost identical pattern in the Crossrail programme, where a leadership team and governance boards staffed predominantly by civil engineers failed to recognise the need to begin operational and systems integration planning early enough, contributing directly to cost increases and delays.[^2] The lesson generalises well beyond rail and banking infrastructure: any transformation that splits a legacy estate into cleaner, more manageable procurement lots needs someone whose job is explicitly to own the seams between those lots, from the earliest planning stage, not once integration testing reveals the gaps.
Anti-pattern three: purpose that drifts, and governance that doesn’t adapt with it
Every major programme changes over its lifetime, but not every programme’s reason for existing should change with it. The NAO’s account of HS2 is a stark illustration of what happens when it does: the core justification for the railway shifted over time between increasing capacity, improving speed, driving growth and enabling regional regeneration, with the Institution of Civil Engineers concluding that differing opinions among successive decision-makers about why the project mattered meant decisions were no longer aligned to a central purpose, directly contributing to the project losing political support.[^2] A related but distinct anti-pattern is governance that stays structurally frozen while the programme’s risk profile evolves around it. The NAO notes that different lifecycle phases require different skills and expertise on governance boards, and that failing to adapt board composition and decision rights as a programme moves from planning through delivery to operational transition is a recurring source of avoidable failure.[^2] NS&I’s own governance tells a version of the same story: a Board committee was only established in October 2024, four years into the programme, and NS&I staff reported that decision-making remained slow and hierarchical, with continuing ambiguity about which board actually held which decisions.[^1]
Anti-pattern four: assurance that reports on activity rather than enabling a challenge
It is tempting to treat heavy reporting and multiple layers of assurance as evidence of good governance. The NAO’s mega-projects work found the opposite can be true: it identified cases where assurance was carried out by people with “neither the expertise or the position in project governance to act,” concluding that in such cases “little value is added by these processes, which come at a significant additional cost.”[^2] NS&I illustrates the cost of assurance without action rather than assurance without expertise: the Government Internal Audit Agency gave the programme a “limited” opinion for three successive years, citing significant weaknesses in governance, risk management and control, while external interviewees told the NAO that NS&I had sometimes, or often, acted slowly or not at all on advice it had specifically sought out.[^1] Assurance that exists to produce a report is a cost. Assurance that exists to trigger a decision is a control. The distinction is not academic: it is usually visible within the first governance cycle of any programme, if anyone is looking for it.
A fifth pattern, now being addressed at the centre: portfolio bloat diluting central attention
It is worth noting that government has recently acted on one structural anti-pattern in a way that is unusually candid. From April 2026, the Government Major Projects Portfolio, the mechanism through which the centre of government provides extra scrutiny and support to the riskiest programmes, is being reduced from over 200 projects to around 80, with the Chief Secretary to the Treasury stating plainly that “for too long, projects have been run through overly complex systems that slow decisions down and blur accountability.”[^3] The implicit admission is significant: central oversight, spread across too many programmes, stops functioning as oversight and starts functioning as a formality that neither strengthens accountability at the centre nor removes it cleanly to departments. Organisations running their own portfolios of change, inside or alongside government, face a scaled-down version of the same choice, a small number of well-supported priority programmes will outperform a long list of moderately-attended ones every time.
What “good” looks like in practice
None of this is really about digital technology, even though most of these anti-patterns surface inside technology-enabled transformation programmes. As the NAO’s own head, Gareth Davies, put it in his February 2026 address to Parliament, real productivity gains from digital transformation cannot be achieved without fundamentally reviewing business processes and improving data quality first, the technology is rarely the constraint.[^4] The practical implication for anyone sponsoring or delivering a public sector or regulated transformation programme is to test, before committing serious money, whether the programme has a scope and timetable grounded in a genuine understanding of the system being changed rather than a political or budgetary deadline; a named function accountable for the end-to-end design and the interdependencies between its component parts; a governance structure with an explicit plan for how it will change as the programme moves through its lifecycle; and an assurance approach built to trigger decisions, not just produce reports that sit in a folder. Programmes that can answer these questions convincingly before mobilisation are rare. They are also, on the NAO’s own evidence, considerably more likely to still be delivering on their original promise five years later.
Where this leaves transformation sponsors
Recognising these anti-patterns is the easy part; most experienced delivery leaders will recognise all five from their own careers. The harder part is building the discipline to interrogate a new programme against them before mobilisation, when the political and organisational pressure is almost always to move fast rather than to spend another few weeks establishing whether the plan actually holds together. This is where an external delivery partner earns its value: not by bringing enthusiasm for a technology, but by bringing the pattern recognition to ask the uncomfortable questions about complexity, ownership, governance and assurance before they become £440 million findings in someone else’s NAO report.
If you are scoping a transformation programme and want a second opinion on where these anti-patterns might already be forming, Flipware Technologies works with regulated organisations and public bodies to pressure-test delivery plans against exactly this kind of evidence before mobilisation, not after the reset.
References
[^1]: National Audit Office, National Savings & Investments’ Business Transformation Programme, HC 1379, published 14 November 2025. https://www.nao.org.uk/wp-content/uploads/2025/11/national-savings-and-investments-business-transformation-programme-summary.pdf
[^2]: National Audit Office, Lessons learned: Governance and decision-making on mega-projects, HC 545, published 14 March 2025. https://www.nao.org.uk/wp-content/uploads/2025/03/lessons-learned-governance-and-decision-making-on-mega-projects.pdf
[^3]: National Infrastructure and Service Transformation Authority / HM Treasury, Government refocuses major projects to boost delivery of national priorities, GOV.UK, published 31 March 2026. https://www.gov.uk/government/news/government-refocuses-major-projects-to-boost-delivery-of-national-priorities
[^4]: Gareth Davies, Comptroller and Auditor General, Step change needed in government financial management, National Audit Office, keynote speech, 10 February 2026. https://www.nao.org.uk/insights/step-change-needed-in-government-financial-management/
